CNN flies aboard a Navy plane that gets a look at China's rapidly expanding presence in the South China Sea. The crew receives multiple in-flight warnings.

CNN flies aboard a Navy plane that gets a look at China's rapidly expanding presence in the South China Sea. The crew receives multiple in-flight warnings.

High above one of the most hotly contested regions in the world, CNN was given a rare look Friday at the Chinese government’s rapidly expanding militarization of the South China Sea from a US reconnaissance plane.